Induction train-control system with roadside apparatus



June 1925- 1,539,877

A. G. SHAVER INDUCTION TRAIN CONTROL SYSTEM WITH ROADSIDE APPARATUS Filed Oct. 10, 1921 3 Sheets-Sheet 1 glvwento'a ,A. 6'. gihaual" alike: W011 A. G. SHAVER 3 Sheets-Sheet 2 INDUCTION TRAI CONTROL SYSTEM WITH ROADSIDE APPARATUS Filed Oct. 10. 1921 June 2, 1925.

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change the phase relations in said circuit Patented June 2, 1925.

UNITED STATES PATENT OFFICE.

ABCHIBALD G. SHAVER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE REGAN SAFETY DEVICES COMPANY, INC., OF NEW YORK, N. Y., A CORPORATION OF NEW- YORK- INDUCTION TRAIN-CONTROL SYSTEM WITH ROADSIDE APPARATUS.

Application filed October 10, 1921. Serial No. 506,596.

To all whom it may concern.

Be it known that I, ARCHIBALD G. SHAVER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Induction Train-Control Systems with Roadside Apparatus, of

which the following is a specification.

This invention relates to induction train control systems, and more particularly to roadside'mechanism employed in such systems for inductively transmitting energy to cooperative vehicle carried mechanism when the latter moves in proximity to the former in the movement of the vehicle or train on operate vehicle control means; the provision .of such roadside mechanism 0 rative for transmitting energy to the ve icle under safety track conditions and for inhibiting the transmission of such energy under danger track conditions; the further provision of such mechanism comprising an energy receiving inductorium and an energy transmitting inductorium so connected-in circuit as to permit reversal of connections to and to permit disconnection to inhibit the transmission of energy from one inductorium to the other; the still further provision of a roadside mechanism of this nature in which means are provided for correcting for phase displacement and power factor of the circuit so that a substantial amount of energy is transmitted to and re-induced in the train carried mechanism; and the provision of a roadside inductorium apparatus in which the induced impulses are of a character to effectively operate the train carried apparatus having especial utility with high speed trains.

To the accomplishment of the foregoing and such other objects as may hereinafter appear, my invention consists in the elements and their relation one to the other, as hereinafter particularl described and sought to be defined in t e claims, reference being had to the accompanying drawing which shows preferred embodiments of my invention, and in which:

Fig. 1 is a diagrammatic view of the roadside inductoriums showing part of the vehicllele carried mechanism cooperating therewit v r i Fig. 2 is a section on the line 2-2 of Fig. 1 and 7 Figs. 3 to 10 are views of modifications.

As disclosed in my copending applications above referred to, the roadside mechanism of my invention is constructed to'be= responsive to different track'conditions such as safe, caution and danger track' conditions to cooperate with vehicle mechanism in the movement of the trainfor impressing difl'erent indications or effects on. the train such as proceed,speed restrictive and stop efl'ectsin accordance with and in correspondence to the said track condi tions. To accomplish these ends I provide for each section or block of the track a set of 'inductoriums such as the energy receiv-' ing inductorium 62 and the ener transmitting inductorium each of w 1011 may be about 50 feet in length and may comprise a coil wound upon linear cores as clearly the movement of the vehicle for receiving energy from a vehicle energy source and for transmitting such energy back to the vehicle for operating the train control means, the vehicle being provided to this end with the energy transmitting inductorium 62 adapted for inductive cooperation with the roadside receiving inductorium 62 as shown in Figs. 1 and 2. andthe vehicle energy receiving inductorium '60." adapted for inductive cooperation with the roadside transmitting inductorium 60. The construction ofthe vehicle system is such that if energy is transmitted to the energy receiving inductorium 60 in one direction or in a given phase, proceed efiects are produced on the train, and if such energy is transmitted in .an opposite direction or in an opposite phase, speed restrictive effects are produced on the train; and if no energy is transmitted,

and for disconnecting the inductoriums responsive to roadside conditions, such means comprising a pole changer including the contacts 74 and 75 under the control of a dis tant relay D. and a circuit make and break device including the contacts 72 and 73 under the control of a home relay Under safety track conditions with the relays D and H energized, the inductoriums 60and 62 are connected by the circuit including the coil of the. inductorium 62 conductor 35, contact closed in attracted position, conductor 34, closed contact 7 3, conductor 33, the coil of inductorium. 60",

conductor 39, contact 72 closed, conductor 38, contact 74-closed in attracted position, and conductor 36 to the coil of inductorium 62", the closing of this circuit being effective for transmitting energy from inductorium 62" to inductorium 60'in a given direction or phase.

Under caution track conditions the distant relay D is deenergized and the contacts 7 4 and 75 controlled thereby are actu ated to released position, this being effective for reversing the circuit connections between. the inductoriums by the engagement of the contacts 74 and 75 with the conductors 35 and 40 respectively, this reversal of connec* tions between the inductoriums resulting in the transmission of energy from the receiving inductorium 62 to the transmitting indpctoriun'i 60 in an opposite direction or p iase.

Under danger track conditions with the relay H deenergized, the contacts 72 and 73 are opened, disconnecting the inductoriums 62 and 60 and resulting in the inhibiting of transmission of energy from one to the other.

For the purpose of correcting for phase displacement and power factor in the inductorium circuit, I provide circuit modifying means such as shown in the alternative arrangements of Figs. 3 to 10 of the drawings. In Fig. 3 the receiving and transmitting inductoriums 62 and 60 respectively are provided with secondary circuits each of which may comprise a coil 100 wound about the core o the inductorium and condenser 102'. connected to said coil. "With this roar struction each inductorium is in effect a transformer, and the secondary circuit functions to correct the phase displacement and power factor.

- In Fig. 4 I show a modification of Fig. 3 with the employment of a multiple inductorium system, both the transmitting and receivin inductoriums being divided into a plurality of sections or elements, the inductorium elements beingarranged in tandem as shown in the figure and connected in series with the pole changing. and make and break switch means controlled by the distant and home relays D and H respectively. Each of the inductorium elements may be also provided with phase displace ment and power factor correcting means of the type shown in Fig. 3, the energy transmitting inductorium elements being to this end provided with the secondary coils 102 and the condensers 104 connected thereto,

and the energy transmitting inductorium.

divided in this mannerv into a plurality of sections or elements, that under similar operating conditions, as for example with the same amount of energy used, the multiple inductorium system produces impulses of greater amplitude, this being especially desirable for high speed trains. More specifically, where a single inductorium is used the impulse with a given amount of energy employed may be represented by a long flat curve, and where such inductorium is divided into two sections or elements with the sum of thelength of the sections being substantially equal to the length of the single section, the successive impulses produced will each be of greateramplitude, this being a desirable characteristic 'inthe operation of a train control element such as a relay,and at high speeds the succession of waves will tend to merge together to produce an impulse having an effective greater length than the impulse produced with a single inductorium. The inductorium elements in tandem may be arranged in series as shown in Fig. 4, or may be differently arranged as indicated in the modifications to be described hereinafter.

In Fig. 5 of the drawings for the purpose of correcting for phase displacement or power factor of the inductorium'circuit a condenser 106 is arranged in parallel. with one of the inductoriums, as for example, the energy receiving inductorium 62 said condenser being connected to the conductors l0? and 108 'which lead to the energy trans mitting inductorium 6G In Fig. 6 the parallel arrangement oi the condenser shown in a is combined it the tandem arrangement of the inductozuun ranged in tandem.

elements. In this arrangement the coil elementsof the inductorium 62 are provided with condensers 113 and 114, the coil elemake and break contacts 109 and 110'and by the inner set of pole changing contacts 111 and 112, the construction in Fig. 6 being in effect Fig. 5 duplicated in tandem.

In the arrangement shown in Fig. 7 a condenser 115 is introduced in series with both inductoriums 60 and 62 to accomplish the same results. In the arrangement shown in Fig. 8 the inductoriums 62" and 60 are divided into a plurality of elementsarranged in tandem, the elements of the inductoriums being connected in independentcircuits through the relay controlled make and break and pole changing switches, Fig. 8

comprising a construction in which a plurality of circuits as shown in Fig. 7 are ar In Fig. 9 one of the inductoriums 60 or 62 is provided With'ashunt circuit 116 including a transformer 117, to the secondary of which is connected the condenser 118, this arrangement alsoprovidingofor a correction of phase displacement and power factor of the inductorium circuit. The arrangement shown in Fig. 10 is in effect Fig. 9 duplicated in tandem, the in ductoriums 60* and 62" each'comprising a plurality of elements, each of the elements of the inductorium 60 being provided with a secondary or shunt circuit such as 116 embodying the transformer 117 to the secondary of which is connected the condenser 118.

While I have herein referred to coil 62" as the energy receiving inductorium and the coil 60 as the energy transmitting inductorium, it will be obvious that these coils so function for a given direction of movement of the train or vehicle. It will be further obvious that with the movement of a vehicle in the opposite direction, the coil 62* is an energy transmitting inductorium and the coil 60 is an energy receiving in-. ductorium, the roadside inductoriums thus being constructed and adapted to be utilizable with trains moving in both directions; the roadside inductorium system herein described being furthermore equally applicable with movement of trains in either direction, irrespective of whether the locomotive is moving stack or tender first.

While I have shown my device in the preferred forms, it will be apparent that many changes and modifications may be made in the structure disclosed, without departing from the spirit of the invention, defined in the following claims.

'I claim:

1. In an inductive train control system, roadside mechanism comprising an energy receiving inductorium and an energy transmitting inductorium, roadside means operable in response to track conditions for connecting the inductoriums in circuit under a safety track condition and operative to disconnect the same under a Warning track condition.

2. Inan inductive train.control system, roadside mechanism comprising a plurality of inductoriums,'and means for connecting v .the same operative to reverse circu t connections therebetween. z

3. In an inductive train control system, roadside mechanism comprising a plurality of inductoriums, and means for connecting the same operative to reverse circuit connedtions therebetween and for breaking circuit connections therebetween.

4. In an inductive train control system, roadside mechanism comprising a plurality of inductoriums, and means for connecting the same 0 erative to reverse circuit connections there etween and for breakin circuit connections therebetween, the sai means comprising a pole changer and a make and break device. 5. In an inductive train controlsystcm, roadside mechanism comprising a plurality of inductoriums connected in circuit, one of said inductoriums being an energy transmitting ,and the other of said inductoriums being an energy receiving inductorium,road-' side means operable in response to track cou ditions for connecting the inductoriums in circuit under a safety track condition and operative to disconnect-the same under an unsafe track condition, and means for correcting for phase displacement or power factor of said circuit. v

6. In. an inductive train control system, roadside mechanism comprising-an energy receiving inductorium, an energy transmitting inductorium connected in circuit thereto, and means for correcting for phase displacement or power factor of said circuit.

7., In .an inductive train control system,

roadside mechanism comprising anenergy receiving inductorium, an energy transmitting inductorium connected in circuit thereto, means for changing circuit conne'c tionsbetween said inductoriums, and means for correcting for phase displacement '-or power factor of said circuit. 1

8. In an inductive train control system, roadside mechanism comprising an energy receiving inductorium, an energy transmitting inductorium connected I in circuit thereto, and means for correcting for phase displacement or power factor of said circuit, the said correcting means includinga con-v denser electrically connected to said circuit for compensating the lag therein. v

9. In an inductive traincontrol system, roadside mechanism comprising an energy receiving inductorium, an energy transmitting inductorium connected in circuit thereto, means for changing circuit connections between said inductoriums, and means for correcting for base displacement or power factorof said circuit, the said correcting means includin a condenser electrically connected to said circuit for'comtoriums, and means for correcting for phase displacement or power factor of said circuit.

12. In an inductive train control system, roadside mechanism comprising a plurality of inductoriums connected in circuit, a pole changer and a make and break device operable. in response to track conditions for re-' versing circuit connections and for opening;

circuit connections between said inductoriums, and means for correcting for phase displacement orpower factor of said circuit.

13. In an inductive train control system, roadside mechanism comprising an energy receiving inductorium, an energy transmits ting inductorium connected in circuit thereto, means for reversing circuit connections and for breaking circuit connections between the inductoriums, and means for correcting for phase displacement or power factor of said circuit. 1

14. In an inductive traincontrol system,

roadside mechanism comprising an energy receiving inductorium, an energy transmitting inductorium connected in circuit thereto, and. means for correcting for phase displacement or power factor of said circuit, the said correcting means including a secondary circuit associated with an inductorium active for compensating for the current lag therein.

15. In an inductive train control system, roadside mechanism comprising an-energy receiving inductorium, an energy: transmit in circuit thereto, and means for correct ng-for phase ting inductorium connected displacementor power factor of said circuit, the said correcting means including a secondary circuit associated with an inductorium active for compensating for the current lag therein, and a condenser in said secondary circui e s 16.. In combination, roadside apparatus for impressing roadside conditions on mov: ing vehicles comprisinga plurality of connected inductorium elements arranged in alinement longitudinally of the track and spaced closely adjacent eachother for producing successive and cumulative impulses in a vehicle carried mechanism, and means for correcting for phase displacement or power factor of saidclcments.

17. In combination, roadside apparatus for impressing roadside conditions on moving vehicles comprising roadside energy transmitting inductorium means and roadside energy receiving inductorium 'means connected thereto, each of the said inductorium means comprising a plurality of inductorium elements arranged in tandem, and means for correcting for phase displacement or power factor of said inductorium means. 18. In combination, roadside apparatus "for impressing roadside conditions on moving vehicles comprising a plurality of road-' side energy receivers arranged in tandem, a plurality of roadside energy transmitters arranged in tandem, meansfor selectively connecting the said receivers in circuit with said transmitters and means for correcting for phase displacement or power factor of said circuit. j

19. In combination, roadside apparatus for impressing roadside conditions on moving vehicles comprising a. plurality of roadside energy receivers arranged in tandem, a plurality of roadside energy transmitters arranged in tandem, means for selectivelyv connecting the said receivers in circuit with the said transmitters, provisions for disconnecting the receivers from the transmitters, and means for correcting for phase displacement or power factor of said circuit. 1

20. Incombination, roadside apparatusfor im ressing roadside conditions on moving ve icles comprising a plurality of in-" ductorium elements connected in circuit and arranged in alinement longitudinally of the track and spaced closely adjacent eaeh other for producing successive and cumulativeim pulses in a. vehicle carried mechanism, and means for correcting for phase displacement or, power factor of said circuit, the said means comprising a condenser connected to said circuitfor compensating for the cur- ,rent lag therein. r In testimony whereof Iafiix my'signature.

1 ARCHIBALD G. HAVER.

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